Andre10222002 Andre10222002
  • 03-12-2018
  • Mathematics
contestada

Use the quadratic formula to find solutions to the quadratic equation given below. 2x2+x-1=0

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theinfinitehorse666
theinfinitehorse666 theinfinitehorse666
  • 03-12-2018

Answer:

[tex]\boxed{x = \frac{1}{2}} \text{and} \boxed{x = - 1}[/tex]

Step-by-step explanation:

The quadratic formula is: [tex]$\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$[/tex].

So plugging in all the values, we are left with [tex]\frac{-1 \pm 3}{4}.[/tex]

Then, we can solve for both values of x, which are [tex]x = 1/2[/tex] and [tex]x = -1[/tex]

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